Only Google Pixel devices are supported, new models are recommended. Source.
GrapheneOS
grapheneos.orgA hardened pick. Worth the effort once you have chosen to shrink your footprint on purpose. Enough for most people. Threat levels
Pixel-only and unapologetic about it, because tying itself to verified-boot hardware is exactly how it gets to make stronger guarantees than rivals that chase device breadth. That’s the trade: you buy into Google’s phone hardware to escape Google’s software, and a sandboxed Play layer keeps real apps working. For a high but practical threat model it’s the most credible mobile OS going. Skip it only if you refuse to own a Pixel.
Measures the security configuration of the tool's own website, not the privacy of the product itself. A strong tool can still score low here.
GrapheneOS alternatives
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